07 | Keysight | U1450A/U1460A Insulation Resistance Testers - Data Sheet

Speciications

U1451A/U1452A/U1452AT insulation resistance speciications

Insulation resistance specifications with accuracy of ± (% of reading + number of least significant digit)

Test voltage

Range

Resolution

Accuracy

Test current

50 V

6 MΩ

0.001 MΩ

2% + 5

1 mA @ 50 kΩ

< 50 MΩ

0.01 MΩ

2% + 5

~60 GΩ

~0.01 GΩ

100 V

6 MΩ

0.001 MΩ

2% + 5

1 mA @ 100 kΩ

60 MΩ

0.01 MΩ

2% + 5

< 100 MΩ

0.1 MΩ

2% + 5

~60 GΩ

~0.01 GΩ

250 V

6 MΩ

0.001 MΩ

1.5% + 5

1 mA @ 250 kΩ

60 MΩ

0.01 MΩ

1.5% + 5

< 250 MΩ

0.1 MΩ

1.5% + 5

~200 GΩ

~0.1 GΩ

500 V

6 MΩ

0.001 MΩ

1.5% + 5

1 mA @ 500 kΩ

60 MΩ

0.01 MΩ

1.5% + 5

< 500 MΩ

0.1 MΩ

1.5% + 5

~200 GΩ

~0.1 GΩ

1000 V

6 MΩ

0.001 MΩ

1.5% + 5

1 mA @ 1 MΩ

60 MΩ

0.01 MΩ

1.5% + 5

600 MΩ

0.1 MΩ

1.5% + 5

< 1 GΩ

0.001 GΩ

1.5% + 5

~200 GΩ

~0.1 GΩ

1.

The voltage indication on the display refers to the voltage at the DUT (device under test), and the accuracy is according to the DC voltage mea-

surement. The default test voltage is shown in the table below.

Ω

1000 V

500 V

250 V

100 V

50 V

Test voltage

1000 V

500 V

250 V

100 V

50 V

Test accuracy

0% to +20 % 0% to +20 % 0% to +20 % 0% to +20 % 0% to +20 %

The test voltage across a resistor of a value of UN × (1000 Ω/V) shall not differ by more than 10% relative to noload (open) voltage, as a result of

possibly present AC voltage components in the output voltage, when a capacitor of 1 µF is connected in parallel with the insulation resistance to

be measured. UN represents the nominal output test voltage.

2.

Additional accuracy is to be added to the basic accuracy as shown in the table below.

Voltage

1000 V

500 V

250 V

100 V

50 V

Above

1 GΩ

500 MΩ

250 MΩ

100 MΩ

50 MΩ

Basic accuracy

1.5% + 5

1.5% + 5

1.5% + 5

2.0% + 5

2.0% + 5

Additional accuracy

0.1%/GΩ

0.2%/GΩ

0.4%/GΩ

1.0%/GΩ

2.0%/GΩ